  ServiceDescription sd = (ServiceDescription) it.next();
  ACLMessage cfpMsg = new ACLMessage(ACLMessage.CFP);
  cfpMsg.addReceiver(new AID(provider.getLocalName(),AID.ISLOCALNAME));
  cfpMsg.setContent(AMessage.constructMessage((Messageable)myAgent, AMessage.MessageType.CALL_CLEAN));
  myAgent.send(cfpMsg);